交大 英语(三) 第一次作业

第一篇：交大 英语(三) 第一次作业

题目1 不正确

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Flag question What is the train ______ to Birmingham? 选择一项：

a.fee b.cost c.tip d.fare 反馈

正确答案是：fare

题目2 正确

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Flag question 题干

Today's weather is ____ worse than yesterday's.选择一项：

a.much

b.very much c.much too d.very 反馈

正确答案是：much 题目3 正确

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Flag question 题干

I don't know the park, but it's______ to be quite beautiful.选择一项：

a.talked b.told c.spoken d.said 反馈

正确答案是：said

题目4 正确

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Flag question 题干

You had better ______ a doctor as soon as possible.选择一项：

a.seen b.saw c.seeing d.see 反馈

正确答案是：see

题目5 正确

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Flag question 题干

You needn't make such a funny noise, _______? 选择一项：

a.need you b.doesn't it c.need it d.don't you 反馈

正确答案是：need you

题目6 不正确

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Flag question 题干 This is the student _______ I know will pass the TOEFL test.选择一项：

a.who b.whom c.what d.whose 反馈

正确答案是：who

题目7 正确

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Flag question 题干

--Is the library ____ now？--No，it's____.选择一项：

a.opened； closed b.opening； closing c.open；closed d.open；close 反馈

正确答案是：open；closed

题目8 正确

获得1.00分中的1.00分 Flag question 题干

*Why he did it will remain a _______ for ever.选择一项：

a.public b.puzzle c.pass d.strange 反馈

正确答案是：puzzle

题目9 正确

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Flag question 题干

After the Minister of Education had finished speaking at the press conference, he was made ____all sorts of awkward questions.选择一项：

a.answer b.answering c.to answer d.answered 反馈 正确答案是：to answer 题目10 正确

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Flag question 题干

A pair of spectacles ________ what I need at the moment.选择一项：

a.has b.is

c.have d.are 反馈

正确答案是：is 题目11 正确

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Flag question 题干

I fell and hurt myself while I ________ basketball yesterday.选择一项：

a.was playing b.played c.am playing d.play 反馈

正确答案是：was playing 题目12 正确

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Flag question 题干

We'll hold a sports meeting if it _____rain tomorrow.选择一项：

a.doesn't b.won't c.isn't d.has 反馈

正确答案是：doesn't

题目13 正确

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Flag question 题干

--Have you got _____E-mail address?--Yes, mine is Li Ping @ yahoo.com.cn.选择一项：

a.a b.an c./ d.the 反馈

正确答案是：an 题目14 正确

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Flag question 题干

Tom was watching TV when someone______.选择一项：

a.has come b.came c.come d.comes 反馈

正确答案是：came

题目15 正确

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Flag question 题干 *One needs a good sense of ______ to ride a bike.选择一项：

a.ability b.level c.balance d.skill 反馈

正确答案是：balance

题目16 正确

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Flag question 题干

He asked the waiter ________ the bill.选择一项：

a.of b.for c.after d.on 反馈

正确答案是：for

题目17 正确

获得1.00分中的1.00分 Flag question 题干

Don't ________ your study.We are going to help you.选择一项：

a.be worried b.be afraid c.worry about d.worry 反馈

正确答案是：worry about

题目18 正确

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Flag question 题干

-Take this medicine twice a day, Peter?-Do I have to take it? It ________ so terrible.选择一项：

a.tastes

b.has tasted c.is tasted d.is tasting 反馈

正确答案是：tastes 题目19 正确

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Flag question 题干

When the railway is completed, we ____ get to town much easily.选择一项：

a.can b.will be able to c.could d.are able to 反馈

正确答案是：will be able to

题目20 正确

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Flag question 题干

We moved to the front row _____we could hear and see better.选择一项：

a.because b.such that c.so as d.so that 反馈

正确答案是：so that 题目21 正确

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Flag question 题干

The car accident happened at _______crossroads a few metres away from_______bank.选择一项：

a.the;the b.the;/ c./;a d./;the 反馈

正确答案是：the;the

题目22 正确

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Flag question 题干

--Is this your shoe?--Yes, but where is ________? 选择一项：

a.another one b.other one c.the others d.the other one 反馈

正确答案是：the other one

题目23 正确

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Flag question 题干

We will have a ________holiday after the exam.选择一项：

a.two-months b.two month's c.two month d.two-month 反馈

正确答案是：two-month

题目24 正确

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Flag question 题干 The plane was about to _______, and yet I left my ticket behind.选择一项：

a.take up b.take off c.take on d.take in 反馈

正确答案是：take off

题目25 正确

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Flag question 题干

I was giving a talk to a large group of people, the same talk I __________to half a dozen other groups.选择一项：

a.have given b.was giving c.am giving d.had given 反馈

正确答案是：had given A sudden noise of a fire-engine made him ___to the door.选择一项：

a.to hurry b.hurry c.hurried d.hurrying 反馈

正确答案是：hurry 题目27 正确

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Flag question 题干

It's bad ________ for you to smoke in the public places where smoking is not allowed.选择一项：

a.manner b.action c.movement d.behavior 反馈

正确答案是：behavior

题目28 正确

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Flag question 题干

Are you going to fix the car yourself, or are you going to have it _______? 选择一项： a.fixed b.fixing c.to fix d.fix 反馈

正确答案是：fixed 题目29 正确

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Flag question 题干

It is the best ______ I have seen.选择一项：

a.which b.that c.who d.whom 反馈

正确答案是：that

题目30 正确

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Flag question 题干

Professor, would you slow down a bit, please? I can't _______you.选择一项：

a.hold on to b.make up to c.keep up with d.put up with 反馈

正确答案是：keep up with

第二篇：交大 运营管理 第一次作业

工艺专业化和对象专业化各有什么优缺点？他们各自适合哪种情况？ 答：

1、工艺专业化的优缺点：

工艺专业化的优点是:对产品品种变化有较强的适应能力。工艺专业化的缺点是： 1)生产率较低；

2)生产过程的连续性较差，运输距离长。

3)计划管理、生产调度、质量管理、在 制品管理等管理工作变得

复杂，使管理工作量大为增加。

2、对象专业化的优缺点：

对象专业化的优点是：

1)生产的专业化程度高，从而可以获得 较高的劳动生产率；因此，生产周期长，在制品量大，因而相应的费用支出就高。

2)管理工作较简单。

对象专业化的缺点：适应性差,设备利用率不高,不利于工人交流.与工艺专业化正好相反。

第三篇：西南交大建筑材料B第一次作业

建筑材料B

四、主观题(共17道小题)

52.今有软化点分别为95℃和25℃的两种石油沥青。某工程的屋面防水要求使用软化点为75℃的石油沥青，问应如何配制？

解：

软化点为 95℃ 的石油沥青用量 =(95℃－75℃)/(95 ℃－ 25℃)× 100 ％ ＝ 28.6 ％

软化点为 25℃ 的石油沥青用量 =100 ％－ 28.6 ％＝ 71.4 ％

所以，软化点为 95℃ 的石油沥青用量为 28.6 ％；软化点为 25℃ 的石油沥青用量为 71.4 ％。

53.已知某混凝土的试验室配合比为 C∶S ∶G ＝ 1∶1.92 ∶3.97，W/C＝ 0.56, 配制1m3 混凝土水泥用量为300Kg。施工现场砂、石的含水率分别为5% 和1%，求施工配合比。

参考答案：解：按试验室配合比，1m3混凝土中各种材料得用量为：

C= 300Kg ； W ＝ 300 × 0.56 ＝ 168Kg ； S ＝ 300 × 1.92 ＝ 576Kg ； G ＝ 300 × 3.97 ＝ 1191Kg ；

所以，施工配合比为：

C= 300Kg ； W ＝ 168-576 × 5 ％-1191 × 1 ％＝ 127Kg ；

S ＝ 576 ×(1 ＋ 5 ％)＝ 605Kg ； G ＝ 1191 ×(1+1 ％)＝ 1203Kg ；

施工配合比为： C= 300Kg ； W ＝ 127Kg ； S ＝ 605Kg ； G ＝ 1203Kg。

54.假设混凝土抗压强度随龄期的对数而直线增长，已知1d强度不等于0，7d抗压强度为21MPa，14d抗压强度为26.0MPa，求28d强度为多少?

解：

设混凝土n天的抗压强度为fn，龄期为n，则 fn＝Algn ＋ B ①

又有： f7 ＝ Alg7 ＋ B ②

f14 ＝ Alg14＋ B ③

由式 ②③得 ： A=16.61 ； B ＝ 6.96，代入式 ①得： f28 ＝ 16.61lg28＋ 6.96 ＝ 31MPa

55.填充材料对沥青有何影响？

答：沥青与碱性矿粉之间具有较强的吸附力，在矿粉表面形成一层结合牢固的沥青膜，即所谓“结构沥青”。“结构沥青”具有较高的粘性、大气稳定性，较小的温度感应性。提高了沥青胶的粘结性、耐热性、大气稳定性

56.为何石灰属于气硬性胶凝材料？

答：石灰的凝结硬化是两个同时进行的过程：干燥结晶，碳化反应；

以上过程只能在空气中进行。

石灰硬化后的主要产物是Ca(OH)2，而Ca(OH)2溶于水，不能在潮湿和水中保持其强度。

57.简述混凝土强度的影响因素。

答：①由f28=Afc(C/W-B)

混凝土强度主要取决于水泥等级（水泥强度）和水灰比，水泥等级提高，水灰比降低则混凝土强度提高。

②骨料品种，碎石混凝土强度高于卵石混凝土（配比相同）。

③搅拌和捣实方法。

④养护条件，龄期。⑤试验条件、试件尺寸。

58.为什么说材料表观密度是一项重要基本性质。

答： 答：由表观密度可以说明材料其他一些性质，同类材料的表观密度大说明其孔隙小，吸水率一般也小，强度、抗冻性、抗渗性好，导热系数高。

59.名词解释：堆积密度

答：

堆积密度是指粉状或粒状材料在堆积状态下，单位体积的质量。

60.名词解释：抗渗性

答：抗渗性是指材料抵抗压力水渗透的能力。

61.名词解释:混凝土的强度等级

答：混凝土的强度等级是指按混凝土立方体抗压强度来划分的强度等级。

62.名词解释：石灰陈伏

答：石灰陈伏是指石灰在化灰池中放置两周以上再使用的过程。

63.名词解释：混凝土拌和物的粘聚性

答：混凝土拌和物的粘聚性是指混凝土拌和物在施工过程中其组成材料之间有一定的粘聚力，不致产生分层和离析的现象。

64.名词解释：砂浆的流动性

答：砂浆的流动性是指砂浆在自重或外力的作用下产生流动的性质。

65.名词解释：石油沥青的针入度

答：石油沥青的针入度是指在规定温度25 ℃条件下，以规定重量100g 的标准针，经历规定时间5s 贯入试样中的深度。

66.混凝土拌合物离析

答：混凝土拌合物离析是指混凝土拌和物由于密度和粒径不同，在外力作用下组成材料的分离析出的现象。

67.名词解释：气硬性胶凝材料

答：气硬性胶凝材料是指只能在空气中硬化，保持并继续发展其强度的胶凝材料。

68.名词解释：时效敏感性

答：时效敏感性是指因时效而导致钢材性能改变的程度的大小。

第四篇：西南交大-大学英语3-离线作业

2013—2014学年第一学期

离 线 作 业

科 目： 大学英语III 姓 名： 李冬军 学 号： 1524582 专 业： 车辆工程2015-26班（专本）

西南交通大学网络教育学院

直 属 学习中 心

大学英语 III第1次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “How to Keep Healthy”.You should write no less than 80 words.What is the most important thing in the world? I think it is health.You can take away our money, house, car, or even our clothes and we can survive.But if our health was taken away, we would surely die.That is why we always try to eat in a healthy way and exercise regularly.What＇s more, I think friends are an important part of one＇s health.Many studies show that people with a wide range of social contacts get sick less than those who don＇t.I always feel better when I am with friends than when I am alone.When I am with my friends, I always laugh.Laughing is also an important part of health.I like to laugh with my friends.By eating properly and exercising regularly, I can keep my body at a proper weight and keep healthy.By spending time with my friends, I can keep my mind as well as my body happy.These things sound easy to do, but not many people can manage them.I think a strong will is necessary if we want to keep healthy.大学英语 III第2次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “My Favorite Season”.You should write no less than 80 words.My favorite season is winter.It lasts from December to February.It is the coidest season in the year.In winter,the days are very short.When it comes ,the leaves fall from the trees.When it snows,the ground is white with snow.We can wear warm clothes and go to make snowmen.It is a good season for skating.I like winter best.大学英语 III第3次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “Private Cars”.You should write no less than 80 words.thousands of ordinary families.Privatecars are used every day to carry i people to and from work.At weekends, private cars take families on joyful outings.Most of people living in the city like private cars very much.What is more, the development of the car industry will stimulate other industries, such as iron and steel production.So the private car benefits the growth of economy.Private cars, like everything else, have more than one face.Private cars have also given rise to a series of problems.For example, the street are crowded with cars.They not only cause traffic accidents which injure or kill a large number of people each year, but also make great noise and give off many poisonous gases.But I believe we can solve all of the problems in the near futrue.大学英语 III第4次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “A City to Remember”.You should write no less than 80 words.Every city, be it big or small, rural or urban, ancient or modern, has its own breath of life.Singapore, a small Southeast Asian city-state off the southern tip of the Malay Pennisula, is definitely a city to remember.The most remarkable aspect of Singapore is the cosmopolitan nature of her population, a natural result of the country

”s excellent geographical position and commercial success.Today, Singapore is a bustling cosmopolitan city populated with high-rise buildings and landscape gardens.Brimming with a harmonious blend of culture, cuisine, arts and architecture, Singapore is a dynamic city thats rich in contrast and colour.In fact, you can even say that Singapore embodies the finest of both East and West.All in all, Singapore, unique and warm, is a city to remember.”

大学英语 III第5次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “Online Shopping”.You should write no less than 80 words.Just as its name implies, online shopping is to conduct the shopping activities online.With the development of Internet and electronic commerce,it seems to be gaining in popularity.Online shopping is accessible round the clock and it makes the world's marketplace at your fingertips.It is so convenience that you can buy whatever you want even at 3 a.m.in the morning;you can choose from a wider variety of things available for you to shop which may not be available in the local brick and mortar stores.What's more,it's always cheaper for you.However,given the lack of ability to inspect merchandise before purchase, consumers are at higher risk of fraud on the part of the merchant than in a physical store.So,when shopping online,we have to choose goods with care.But all in all, I would say its advantages outweigh its disadvantages.

第五篇：西南交大离线作业2016大学英语ii

大学英语II

第1次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “My Favorite Sport”.You should write no less than 80 words.I like doingsports very much, such as running, skating, swimming and so on.But playing basketball is my favorite.Playing basketball can make me stronger and stronger.And keeping playing it can make my basketball skills better.Playing basketball is not only very interesting but also helps me make many friends.I don't forget when I was very young my father sent me a basketball as my bithday gift and he taught me how to play it.From then on I loved playing basktball very much.I also enjoy watching NBA games on TV and Kobe Bryant is my favorite baskteball player.I hope I can have a chance to see an NBA game in person.I wish I can play basketball with Kobe Bryant one day.第2次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “My Beloved Grandparents”.You should write no less than 80 words.My grandparents are very special to me.They have worked hard all their lives and sacrificed a lot for my family.Not only that,but they are also special friends to me.They are easier to talk to than my parents and they are very kindmto me.For example,my grandmother makes me delicious things to eat and my grandfather often takes me fishing.In addtion,they are the leaders of my family.They are full of wisdom and know the stories of our ancestors.They are the ones that hold our family together.As a result,I owe them a great deal,but I don't know how to repay them.All I can do is cherish them and never take them for granted.第3次作业 主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “The Course I Hate Most of the Long-distance Education”.You should write no less than 80 words.English is the course that I hate most of the long distance education and I am bad at English.English is really very hard for me, as it is so different from Chinese.First, I cant remember a lot of new words.Second, Im weak in grammar.Third, my listening is poor.Fourth, I cant speak English very well, and I dont have any chance to talk with foreigners.With so many difficulties, I am afraid of learning English and hate learning this course very much.第4次作业

主观题

Directions: For this part, you are allowed 30 minutes to write a composition on the topic “How to Learn English Well?”.You should write no less than 80 words.As we know , English has become an international language.It is more popular than any other language in China.English i s widely spoken in the world and it is the most useful language around the world.But how to learn it well ? The best way is to use it all the time.If we can talk in English , think in English we can learn it well.At school , we should learn to hear , speak, read and write carefully.We should spend enough time in practicing English.If we keep on workinghard at English , we will be able to be good at it one day.第5次作业

主观题

建议你在30分钟内，根据下面所给的提纲用英语写出一篇不少于80词的短文。上星期天你打电话叫Jack和你去公园。在公园你们看见„„，你们玩得很高兴。get up late;call;提示词汇： get to;many people;do exercise;read;lake;fly Last Sunday, I got up very late.After having my breakfast, I called Jack to go to park with me, and he agreed happily.We met at the gate of the park and then went inside to play.We saw many people there.Some were doing exercise;some were reading books under the tree.There's also a very beautiful lake in the park.It was just like a mirror.Jack and I bought two kites.The wind was so strong that we began to fly kites on the grass.We really had a very happy day in the park!